Reverse proxy tcp/udp with nginx

Nginx has the ability to reverse proxy tcp and udp with the stream directive, similar to the http directive:

# Reverse proxy postgres server
stream {
  server {
    listen 5432;
    proxy_pass 172.18.65.97:5432;
  }
}

http {
  server { 
    ...
  }
}

This can be useful to load balance tcp streams like a database connection.

If you built nginx with --with-stream=dynamic (you can check with nginx -V) you will need to manually load a shared object:

# nginx.conf
load_module /usr/lib/nginx/modules/ngx_stream_module.so

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